- A dictionary of medical eponyms

Gunn's sign

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A crossing of an artery over a vein with compression of the underlying vein in the fundus of the eye, indicative of essential hypertension.

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An eponym is a word derived from the name of a person, whether real or fictional. A medical eponym is thus any word related to medicine, whose name is derived from a person.

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Whonamedit.com is a biographical dictionary of medical eponyms. It is our ambition to present a complete survey of all medical phenomena named for a person, with a biography of that person.

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